Construction + Materials Testing

Material Testing Services has been a leader in providing construction materials testing and inspection services in North Dakota, South Dakota and Montana for over 25 years. Our technicians are ACI certified and cross-trained in various areas of testing and inspections. MTS maintains full service laboratories in our Minot and Williston offices for soils, concrete, asphalt and other materials tests.


Our Testing and Inspection Services include, but are not limited to:

  • Excavation observations and recommendations
  • Laboratory testing of soils such as moisture-density relationships, Atterberg limits, and grain-size analysis
  • Soil and aggregate compaction testing and observations
  • Aggregate testing and analysis
  • Fresh concrete testing (including slump, air content, unit weight/yield, temperature)
  • Concrete strength testing
  • Concrete mix design
  • Concrete and reinforcement placement observations
  • Concrete floor flatness surveys
  • Hot Bituminous Pavement mix design, production testing and placement observations
  • Masonry testing and construction observations
  • Steel erection observation and fastener checks
  • Ground Penetrating Radar (GPR) / Rebar location assessments